How did John d Rockefeller horizontally integrate his monopoly in 1889

The transcontinental railroad provided a means of fast transportation. it cut a 6 month trip into 6 days, created jobs for many people and encouraged immigration. the homestead act played a huge role in western expansion; it allowed settlers to begin a fresh start, and gave them land in exchange for their residence for up to five years and a small fee.

Non-landowners, former slaves, native americans, and women to vote. in 1965, the voting rights act was passed to support minorities and remove the literacy